Lifetime cycle tested at U.s. testing laboratories to withstand 10,000 shock cycles
Factory tested to withstand 500,000 cycles without failure (654-C tested)
HydraRester male sweat fittings are compatible with press-fitting systems, such as Viega ProPress and all push-fitting systems
Allows for installation in 2 x 4 wall cavity
Installs at any angle
ASSE 1010 certified as a water hammer arrester that is ""designed to provide continuous protection, without maintenance"" allowing the HydraRester to be installed without access panels